Radial growth and non-structural carbohydrate partitioning response to resin tapping of slash pine(Pinus elliottii ***)

作     者：Baoguo Du Qifu Luan Zhanglin Ni Honggang Sun Jingmin Jiang Baoguo Du;Qifu Luan;Zhanglin Ni;Honggang Sun;Jingmin Jiang

作者机构：College of Life Science and BiotechnologyEcological and Security Key Laboratory of Sichuan ProvinceMianyang Normal UniversityMianyang 621000People’s Republic of China Chair of Tree PhysiologyInstitute of Forest SciencesAlbert Ludwigs-Universitat FreiburgGeorges-Köhler-Allee 5379110 FreiburgGermany Institute of Subtropical Forestry Research of the Chinese Academy of ForestryFuyang 311400People’s Republic of China 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2022年第33卷第2期

页      面：423-433页

核心收录：

学科分类：0907[农学-林学] 08[工学] 0829[工学-林业工程] 09[农学] 

基　　金：The work was supported by the General Program of the National Natural Science Foundation of China(31,470,635) the Fundamental Research Funds of the Chinese Academy of Forestry(No.CAFYBB2017ZX001-3) 

主　　题：Slash pine Localised effects Non-structural carbohydrate Resin tapping Radial growth 

摘      要：Slash pine(Pinus elliottii ***)is a resin-producing species grown worldwide for significant economic benefits for wood *** tapping cre-ates a carbon sink at the expense of carbon allocation for growth and consequently,wood production may be ***-structural carbohydrates comprising starch and sugars stored in plant organs,may serve as intermediate pools between assimilation and ***,the effect of resin tapping between tree growth and non-structural carbo-hydrates is not well *** study investigated(1)the effects of resin tapping on radial growth,(2)the effects of resin tapping on non-structural carbohydrate pools in different compartments,and(3)the feasibility of resin pro-duction without disruption of tree *** one-year-old slash pines were subjected to resin tapping over two suc-cessive ***-structural carbohydrate concentrations in needles,branches,stem phloem,and roots of tapped and untapped trees in summer and winter were determined after the second year of resin *** results showed that tapping had no significant effects on annual *** was the dominant non-structural carbohydrate frac-tion,regardless of tissues and season,and constituted up to 99%of the total non-structural carbohydrates in the phloem and *** and fructose were the dominant sugars;sucrose was *** with the controls,tapped trees showed 26%lower non-structural carbohydrate concen-tration in the phloem above the tapping wound in summer,which was attributable to the decreased abundance of starch,glucose,fructose,and *** winter,the altered non-structural carbohydrate profiles in the phloem above the tap-ping wounding were minimised as a result of recovery of the sugar *** contrast to free sugars,which accu-mulated substantially in needles and branches during winter,starch was enriched in the phloem,roots,and current-year *** results provide evidence fo